Docker is an opensource tool used for virtualization and deliver software in the form of packages called Containers. It is one of the most important tools used in networking domain. Dockerfile is a template for building the image which contains commands needed to package the software. In this post, I am going to explain the commands ADD & COPY used in Dockerfile . ADD Command: ADD command is used to copy files, directories or files from remote URLS to destination path in the image. The source paths can contain wildcards. If the destination has relative path, it is relative to the Working directory of the image. Note that source path is always relative to the Docker build context. ADD command will not support authentication. So, if there are any protected files to be added in Dockerfile building, use other tools like curl or wget Dockerfile copying Single & Multiple files, directory using ADD inst...
In this article, the basic important terminologies in the networking are explained: Connection: A connection is nothing but successful completion of arrangements so that two or more parties can communicate with each other at a long distance. It is deconstructed at the end of the data transfer. Packet: A p acket is the basic unit of the data that is transferred over a network. In communication using network, these packets carry data from one endpoint to another endpoint. The p acket contains a header which contains information about the source, destination, hops etc . and main data which is called as payload. Networking Interface: Networking Interface is nothing but a piece of software that can be used to configure and control the networking hardware of the system. Local Area Network (LAN): Local Area Network is a network that is not accessible to the greater internet. An e...